Parker has praised the City winger for his attitude and application in training, as well as the regular cameos he has been given.
“Yeah I've learnt a lot, I've learnt a lot about him," Parker said on Rogers. “He's pretty young in his development, but he's got big quality, I don't think we've probably seen the best of him at this moment in time.
“It's a big jump from under-23s at Man City, he had a good year last year at Lincoln, and now the next step up is obviously the Championship.
“He's probably been denied opportunities because of how well the players are doing in front of him, how well the team has been doing.
“But I do see someone who understands what we want from him, someone who is growing, becoming more mature in the way he plays, his general demeanour around the place as well.
“A good kid, someone who is trying to improve, trying to get better, he just needs to keep doing that, keep taking these moments albeit at this present moment them moments are coming 10-15 minutes off the bench.
“But other moments can be impressing in training every day, he just needs understand that – which he does, to be honest with you – and keep learning in that way."